Indonesian taxpayer ID — 15 digits, format XX.XXX.XXX.X-XXX.XXX.
NPWP (Nomor Pokok Wajib Pajak) — Indonesian taxpayer ID — 15 digits, format XX.XXX.XXX.X-XXX.XXX.
Example: 12.345.678.9-012.345
BIN lookup, card & data validation, fraud signals — one clean REST API. 500 requests/day free, no credit card required.